Training for your first half-marathon is equal parts exciting, intimidating, and incredibly rewarding.
Thirteen-point-one miles is a big leap, but it’s also one of the most achievable endurance goals out there if you approach it with patience, consistency, and a smart plan.
You don’t need to be fast, experienced, or “built like a runner” to succeed. You just need the right structure, realistic expectations, and a willingness to listen to your body along the way.
This guide is designed specifically for first-time half-marathoners who want to train confidently and avoid the most common mistakes.
Beyond just logging miles, we’ll cover how to choose the right training plan, balance running with cross-training and strength work, vary your workouts, recover properly, and take care of the small details that make a big difference on race day.
Whether your goal is simply to finish strong or to surprise yourself with what you’re capable of, these eight training tips will help you build endurance safely, stay healthy, and show up to the start line feeling prepared—not burned out.
How to Train for a Half Marathon: 8 Training Tips For First-Time Half Marathoners
#1: Follow An Appropriate Half-Marathon Training Plan For You
There are tons of half-marathon plans out there, but the best plan isn’t the one with the flashiest workouts, but the one that actually fits your current fitness, your schedule, and your goal.
Grabbing the first plan you see (or copying what a faster friend is doing) is one of the quickest ways to end up overtrained, underprepared, or injured.
Start by choosing a plan that matches your starting point. How many days per week are you running consistently right now? How long is your current long run? If you’re building from a newer base, you’ll want a plan that ramps up gradually and includes plenty of easy mileage and recovery.
If you’re more experienced and chasing a time goal, you’ll want a plan that layers in structured workouts like threshold runs, intervals, and race-pace work.
Then be honest about the logistics: how many weeks you have, how many days you can train, and how much total volume your body can realistically handle. A plan should work with your life, not fight it.
If you can run 4 days per week, choose a 4-day plan, not a 6-day plan, you’ll “try to make work.” Consistency beats perfection every time. And remember: the goal is to build weekly mileage in a way that’s sustainable, so you arrive at race day feeling trained and fresh.
Check out our huge library of free half-marathon plans here to get you to that finish line.
If you really want some one-on-one help, consider getting a running coach here.
#2: Cross Train
Even if you are a fast runner, running 13.1 miles without stopping is an impressive feat, so it requires following a dedicated, disciplined half-marathon training plan to build your endurance and strength to run the race and meet your target goals by race day.
Keeping the overall running mileage on the lower side and supporting your half-marathon preparation with cross-training workouts to boost your aerobic fitness are great ways to approach half-marathon training while putting less stress on your body.1NILSSON, J., & THORSTENSSON, A. (1989). Ground reaction forces at different speeds of human walking and running. Acta Physiologica Scandinavica, 136(2), 217–227. https://doi.org/10.1111/j.1748-1716.1989.tb08655.x
Biking, swimming, rowing, elliptical machines, and other forms of cardio exercise can improve your overall fitness, which can indirectly make you a better runner and reduce the risk of injuries.2de Jonge, J., Balk, Y., & Taris, T. (2020). Mental Recovery and Running-Related Injuries in Recreational Runners: The Moderating Role of Passion for Running. International Journal of Environmental Research and Public Health, 17(3), 1044. https://doi.org/10.3390/ijerph17031044
#3: Vary Your Workouts
The best half-marathon training incorporates different types of running workouts, not just easy runs. Speedwork, threshold runs, intervals, Fartleks, and hills can be excellent workouts to spice up your training plan and improve your fitness.
Adding variety to your workouts prevents boredom and can help make a longer run feel like it flies by while also challenging different energy systems, muscle fibers, and aspects of your cardiovascular fitness.
Running intervals are one of the best ways to squeeze big fitness gains out of a short workout window. Instead of just jogging easy, intervals let you touch higher intensities (VO₂max-ish effort), train your ability to change gears, and build speed endurance without needing a long block of time.
The beauty is that you can tailor the “on/off” structure to your current fitness and goal. You can play with shorter bursts (like 30–60 seconds) for more speed and turnover, or longer reps (2–5 minutes) to build aerobic power and toughness.
A 20-minute fartlek can absolutely double as a HIIT-style session if the recoveries are short enough that your heart rate stays elevated, think not dropping much below ~75% max HR, and your hard segments climb into the 85–90% range.
For experienced runners, something like 30 seconds hard / 15 seconds easy can be brutally effective in a short time.
And intervals are just one branch of the “quality workout” tree. In a good half-marathon build, you’ll also rotate in:
- Threshold runs (comfortably hard, controlled suffering, think RPE 6) to raise the pace you can hold for a long time
- Hill sprints to build strength, power, and better mechanics under load
- Fartleks for flexible speedwork that’s less rigid than track reps but still very effective
Whatever style you choose, don’t skip the basics: warm up first, then cool down after the speed.
#4: Don’t Be Afraid to Run Slowly
Given technological advancements and lower price points for high-tech GPS running watches, runners can now get just about any workout stat in real time during their training sessions.
While there are many benefits to training by pace and using a GPS running watch, it is also an equally valid, and sometimes even preferable, approach to always (or at least occasionally) ditch your watch and just run by feel, especially for recovery runs.
This can help you really tune in to how your body is feeling and slow down if needed, without feeling pressured to hit a certain race pace, distance, heart rate, etc., based on what your watch shows.
#5: Be Flexible
While you might be following the best half-marathon training plan for your needs, we all have times when a niggle pops up, or you really should take a recovery day or cross-training day instead of a running day because you feel fatigued.
A “smart” runner isn’t a runner who follows a training plan as if it is written in stone, but rather one who uses it as a good guide in conjunction with listening to their body.
#6: Strength Train With a Purpose
The importance of weight lifting as part of your training has garnered sufficient scientific evidence and endorsements from runners of all ability levels, making it a much easier “sell” to get recreational runners to engage in consistent strength training workouts.
For example, studies show3Vikmoen, O., Rønnestad, B. R., Ellefsen, S., & Raastad, T. (2017). Heavy strength training improves running and cycling performance following prolonged submaximal work in well-trained female athletes. Physiological Reports, 5(5), e13149. https://doi.org/10.14814/phy2.13149 that strength training workouts for runners can improve aerobic capacity (VO2 max) and submaximal endurance performance due to the resulting neuromuscular adaptations.
While you don’t need to be a serious weightlifter or bodybuilder for your strength training for running, you do want to be purposeful in how you perform your routine.
Runners most commonly make two mistakes in resistance training: not lifting heavy enough and not choosing the best strength-training exercises for runners.
The first common mistake that runners make with strength training is that running is already a muscular endurance or catabolic exercise, so you want your strength training workouts to be the converse: heavy weights and fewer reps to help build strength.
For the best resistance-training exercises, focus on unilateral movements that help correct muscle imbalances caused by running. If you don’t have access to weights, you can also do bodyweight exercises. Every little bit helps.
When we think about our muscles and the effectiveness of strength training workouts, we often focus on “stronger muscles“ and “weaker muscles.“
Addressing relative strength deficits with specific resistance training exercises targeting the weaker muscles will help correct muscle imbalances and improve overall functional strength.
Include exercises like lunges, single-leg glute bridges, squats, planks, push-ups, pull-ups, and calf raises.
#7: Do Active Recovery Workouts
After a long run or a tough speed workout, you may be inclined to lie down or sit around the rest of the day.
However, think of yourself as an athlete 24/7, not just when doing a specific workout or training run.
Try walking around, stretching, or using your foam roller later in the day after some of your more extensive runs or workout sessions.
Moving your body is great for overall health. It will also increase circulation to your muscles if you are sore from intense training. This can help aid recovery and may reduce muscle soreness.
This doesn’t mean you should skip your rest days; they are also important.
#8: Do The Little Things
There’s a popular saying, “Work hard, play hard,“ but for runners training for a half-marathon, we should change this to “Train hard, recover hard.“
This means that all the supplementary activities you do outside your actual running workouts need to be given the same level of importance in your mind and with your energy and effort as your actual workouts.
This includes fueling your body with a healthy diet, getting enough sleep, staying well hydrated, stretching, and doing mobility work.
Develop a good sleep hygiene routine before bed that includes using a blue light filter on your screen devices for 90 minutes before (even using a blue light filter all day is advisable because blue light can interfere with sleep cycles in general) and avoiding caffeine in the six hours before bedtime.
Optimize your sleep environment by turning down all the lights and using a white noise machine or sleep soundscape soundtrack to block noise and induce calm.
How Long Does It Take to Train for a Half Marathon?
Aside from trying to find the best half-marathon training plans, one of the most common questions about half-marathon training is: “How long does it take to train for a half-marathon?“
Here are our most popular free half marathon training plans:
- 8 Week Half Marathon Training Plan – a compact plan for runners with a solid base
- 12 Week Half Marathon Training Plan – the most popular option for most runners
- 1:45 Half Marathon Training Plan – a goal-specific plan to break 1 hour 45 minutes
- 1:30 Half Marathon Training Plan – for experienced runners targeting a fast time
For complete beginners, we can estimate a range of around a 15-16 week plan to train for a half-marathon. However, this particular marathon training question is highly dependent on numerous factors.
We have an entire guide devoted to the topic, where you can calculate the time you will need to prepare. Click here to estimate your half-marathon training time.
Lace up those running shoes, and let’s get training!
